Petit Dru

In 1966 competing teams raced up the Petit Dru in the Alps above Chamonix, France, to save climbers stranded on the wall. (From 2017)

The Swiss alpinist finished his 10-year project August 15, soloing the North Face of the Petit Dru in one hour and 43 minutes.

As temperatures warm, iconic routes are melting away and becoming more dangerous—even seeing their final ascents